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utils.py
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utils.py
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import os
import shutil
import numpy as np
def split_files(out_path, file_name, prefix_path=''): # split training data
file_name = sorted(file_name)
i, j, k = split_indices(file_name, train=0.9, test=0.1, validate=0.0)
datasets = {'train': i, 'test': j, 'val': k}
for key, item in datasets.items():
with open(out_path + '_' + key + '.txt', 'a') as file:
for i in item:
file.write('%s%s\n' % (prefix_path, file_name[i]))
def split_indices(x, train=0.9, test=0.1, validate=0.0, shuffle=True): # split training data
n = len(x)
v = np.arange(n)
if shuffle:
np.random.shuffle(v)
i = round(n * train) # train
j = round(n * test) + i # test
k = round(n * validate) + j # validate
return v[:i], v[i:j], v[j:k] # return indices
def make_folders(name):
# Create folders
path = name + '_out'
if os.path.exists(path):
shutil.rmtree(path) # delete output folder
os.makedirs(path) # make new output folder
os.makedirs(path + os.sep + 'labels') # make new labels folder
return path